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Mathematics ECAT Pre Engineering Chapter 15 Inverse Trigonometric Functions Online Test MCQs With Answers
Question # 1
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Question # 2
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Question # 3
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Question # 4
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Question # 5
The number of triplets (x, y, z) satisfying sin
-1
x +cos
-1
y + sin
-1
z = 2
π
is
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0
2
1
Infinite
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Question # 6
Sin-1(-x)=
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x
-x
-sin-1 x
cos-1 x
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Question # 7
If 2 tan
1
(cos x) = tan
-1
(cosec
2
x), then x is equal to
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π
/ 3
π
/ 2
π
/ 6
π
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Question # 8
The value of sin-1 24/25 is equal to
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csc-1 25/24
sec-1 24/25
2 tan-1 4/5
2cos-1 24/25
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Question # 9
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Question # 10
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Question # 11
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Question # 12
sin (sin
-1
(1/2))=
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0
2
∞
1/2
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Question # 13
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Question # 14
x = sin
-1
3, then the value of sin x is
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√(3/2)
3
Not possible
-1
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Question # 15
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Question # 16
The principal value of sin-1√(3/2) is
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-π/3
π/3
2π/3
π/2
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Question # 17
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Cos 2x = sin 4y
Cos 4y = cos 2x
Cos 3y = sin 4x
None of these
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Question # 18
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Question # 19
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π
/ 4
π
/ 6
π
/ 3
2π
/ 3
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Question # 20
sin
-1
x =
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tan
-1
x
Cosec
-1
x
Cosec x
cosec
-1
(1/x)
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Question # 21
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π
/ 2
π
/ 3
π
/ 4
π
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Question # 22
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16 / 7
6 / 17
7 / 16
None of these
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Question # 23
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20
10
0
None of these
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Question # 24
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Question # 25
The value of sin
-1
5/13 is equal to
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Cos 5/13
Tan
-1
5/12
cos
-1
5/12
2 cos
-1
4/5
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Question # 26
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π / 4
π / 6
π / 3
0
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Question # 27
Cos
-1
12/13 =
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tan
-1
3/5
cot
-1
13/12
Sec
-1
13/12
sin
-1
5/13
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Question # 28
The domain of the principle cos function is
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Question # 29
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Question # 30
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Question # 31
Tan
-1
1/x = ______
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sin x
sec
-1
X
cot
-1
X
None of these
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